package com.sky.service.impl;

import cn.dev33.satoken.stp.StpUtil;
import com.github.pagehelper.Page;
import com.github.pagehelper.PageHelper;
import com.sky.constant.MessageConstant;
import com.sky.constant.PasswordConstant;
import com.sky.constant.StatusConstant;
import com.sky.context.BaseContext;
import com.sky.dto.EmployeeDTO;
import com.sky.dto.EmployeeLoginDTO;
import com.sky.dto.EmployeePageQueryDTO;
import com.sky.dto.EmployeeRPasswordDTO;
import com.sky.entity.Employee;
import com.sky.exception.AccountLockedException;
import com.sky.exception.AccountNotFoundException;
import com.sky.exception.PasswordEditFailedException;
import com.sky.exception.PasswordErrorException;
import com.sky.mapper.EmployeeMapper;
import com.sky.result.PageResult;
import com.sky.service.EmployeeService;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.util.DigestUtils;

import java.time.LocalDateTime;
import java.util.List;
import java.util.Objects;
@Slf4j
@Service
public class EmployeeServiceImpl implements EmployeeService {

    @Autowired
    private EmployeeMapper employeeMapper;

    /**
     * 员工登录
     *
     * @param employeeLoginDTO
     * @return
     */
    @Override
    public Employee login(EmployeeLoginDTO employeeLoginDTO) {
        String username = employeeLoginDTO.getUsername();
        String password = employeeLoginDTO.getPassword();

        //1、根据用户名查询数据库中的数据
        Employee employee = employeeMapper.getByUsername(username);

        //2、处理各种异常情况（用户名不存在、密码不对、账号被锁定）
        if (employee == null) {
            //账号不存在
//            throw new AccountNotFoundException(MessageConstant.ACCOUNT_NOT_FOUND);
            log.error(MessageConstant.ACCOUNT_NOT_FOUND);
            throw new AccountNotFoundException(MessageConstant.ACCOUNT_NOT_FOUND_AND_PASSWORD_ERROR);
        }

        //密码比对
        // 对前端传过来的明文密码进行MD5加密处理
        password =  DigestUtils.md5DigestAsHex(password.getBytes());
        if (!password.equals(employee.getPassword())) {
            //密码错误
//            throw new PasswordErrorException(MessageConstant.PASSWORD_ERROR);
            log.error(MessageConstant.PASSWORD_ERROR);
            throw new PasswordErrorException(MessageConstant.ACCOUNT_NOT_FOUND_AND_PASSWORD_ERROR);

        }

        if (Objects.equals(employee.getStatus(), StatusConstant.DISABLE)) {
            //账号被锁定
            throw new AccountLockedException(MessageConstant.ACCOUNT_LOCKED);
        }

        //3、返回实体对象
        return employee;
    }


    /**
     * 新增员工
     * @param employeeDTO
     */
    @Override
    public void save(EmployeeDTO employeeDTO) {
        Employee employee = new Employee();
        //对象属性拷贝
        BeanUtils.copyProperties(employeeDTO,employee);

        //设置状态
        employee.setStatus(StatusConstant.ENABLE);
        //设置密码，默认密码123456
        employee.setPassword(DigestUtils.md5DigestAsHex(PasswordConstant.DEFAULT_PASSWORD.getBytes()));

        //设置当前记录的创建时间和修改时间
//        employee.setCreateTime(LocalDateTime.now());
//        employee.setUpdateTime(LocalDateTime.now());
//
//        //设置当前记录创建人id和修改人id
//        //TODO 后期需要修改为当前登录用户的id
//        employee.setCreateUser(StpUtil.getLoginIdAsLong());
//        employee.setUpdateUser(StpUtil.getLoginIdAsLong());

        employeeMapper.insert(employee);
    }

    /**
     * 分页查询
     * @param employeePageQueryDTO
     * @return
     */
    @Override
    public PageResult pageQuery(EmployeePageQueryDTO employeePageQueryDTO) {
        //开始分页查询
        PageHelper.startPage(employeePageQueryDTO.getPage(),employeePageQueryDTO.getPageSize());
        Page<Employee> page = employeeMapper.pageQuery(employeePageQueryDTO);

        long total = page.getTotal();
        List<Employee> result = page.getResult();

        return new PageResult(total,result);
    }


    /**
     * 启用禁用员工账号
     * @param status
     * @param id
     */
    @Override
    public void startOrStop(Integer status, Long id) {
        //update employee set status = ? wheere id = ?
//        Employee employee = new Employee();
//        employee.setStatus(status);
//        employee.setId(id);
        Employee employee = Employee.builder()
                .status(status)
                .id(id)
                .build();
        employeeMapper.update(employee);
    }

    /**
     * 根据id查询员工信息
     * @param id
     * @return
     */
    @Override
    public Employee getById(Long id) {
        Employee employee = employeeMapper.getById(id);
        employee.setPassword("****");
        return employee;
    }

    /**
     * 编辑员工信息
     * @param employeeDTO
     */
    @Override
    public void update(EmployeeDTO employeeDTO) {
        Employee employee = new Employee();
        BeanUtils.copyProperties(employeeDTO,employee);
//        employee.setUpdateTime(LocalDateTime.now());
//        employee.setUpdateUser(StpUtil.getLoginIdAsLong());
        employeeMapper.update(employee);
    }

    /**
     * 修改密码
     * @param employeeRPasswordDTO
     */
    @Override
    public void updatePassword(EmployeeRPasswordDTO employeeRPasswordDTO) {
        log.info("请求参数：{}",employeeRPasswordDTO);
        log.info("旧密码：{}",employeeRPasswordDTO.getOldPassword());
        log.info("新密码：{}",employeeRPasswordDTO.getNewPassword());
        employeeRPasswordDTO.setOldPassword(DigestUtils.md5DigestAsHex(employeeRPasswordDTO.getOldPassword().getBytes()));
        employeeRPasswordDTO.setNewPassword(DigestUtils.md5DigestAsHex(employeeRPasswordDTO.getNewPassword().getBytes()));
        Employee employee = employeeMapper.getById(employeeRPasswordDTO.getEmpId());
        log.info("当前用户：{}",employee);
        if(!employee.getPassword().equals(employeeRPasswordDTO.getOldPassword())){
            throw new PasswordEditFailedException(MessageConstant.PASSWORD_EDIT_FAILED);
        }
        employeeMapper.updatePassword(employeeRPasswordDTO);
    }


}
